Electrooptical lumped modulator

A modulator and electro-optical technology, applied in the field of integrated optoelectronics, can solve the problems of energy consumption, size, and insertion loss cannot be taken into account, and achieve the effect of reducing energy consumption, reducing size, and improving utilization efficiency

Active Publication Date: 2016-09-28
PEKING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the disadvantages of existing traveling-wave electro-optic modulators and lumped modulators that energy consumption, size, and insertion loss cannot be ta

Method used

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  • Electrooptical lumped modulator
  • Electrooptical lumped modulator
  • Electrooptical lumped modulator

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[0030] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the present invention. Invented some embodiments, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0031] The existing lumped modulators mostly use such figure 1 The dual drive mode shown ( figure 1 The PN junction in is the simplest lateral junction, Metal stands for metal electrodes, Contact stands for metal vias), and its electro-optical bandwidth is only below 15GHz, which cannot meet the actual application requirements of modulation rates...

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Abstract

The invention relates to an electrooptical lumped modulator which comprises an optical structure, an electrooptical structure and an electric structure; the electrooptical structure is used for producing an electrooptical effect; the optical structure is used for producing a corresponding modulation effect according to the electrooptical effect; the electric structure is used for supplying power to the electrooptical structure; the driving mode of the electric structure is a single driving mode; the electric structure comprises an electrode which is used for receiving forward and/or reversely transmitted electric signals. According to the electrooptical lumped modulator, the junction capacitance of the modulator is reduced by half by modifying the driving mode of the electric structure of the lumped modulator into the single driving mode, the series resistance is doubled, energy consumption can be reduced, the modulator dimension and insertion loss are reduced, the utilization efficiency of driving voltage is improved, electrooptical bandwidth can be improved, and the practical application requirement is met.

Description

Technical field [0001] The invention relates to the technical field of integrated optoelectronics, in particular to an electro-optical lumped modulator. Background technique [0002] With the current development trend of increasing speed and reducing costs, a large number of communication and interconnection equipment has been upgraded, and silicon-based transceiver systems have begun to be commercialized. However, the high energy consumption of the system has increased the pressure on communication and interconnection infrastructure. The modulator is an important component of the transceiver in the optical communication and optical interconnection system. Its energy consumption is second only to the laser, but the insertion loss of the modulator itself also increases the power budget, so it is an important part of the current efforts to reduce energy consumption. Targets for research. [0003] Electro-optical modulators are classified into lumped modulators and traveling wave mod...

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Application Information

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IPC IPC(8): G02F1/015G02F1/21
CPCG02F1/015G02F1/21G02F1/0154G02F1/212G02F1/215
Inventor 周治平李心白
Owner PEKING UNIV
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